diff options
Diffstat (limited to 'idlc/source/astexpression.cxx')
| -rw-r--r-- | idlc/source/astexpression.cxx | 1321 |
1 files changed, 1321 insertions, 0 deletions
diff --git a/idlc/source/astexpression.cxx b/idlc/source/astexpression.cxx new file mode 100644 index 000000000..cd5a21656 --- /dev/null +++ b/idlc/source/astexpression.cxx @@ -0,0 +1,1321 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <astexpression.hxx> +#include <astconstant.hxx> +#include <astscope.hxx> +#include <errorhandler.hxx> + +#include <o3tl/float_int_conversion.hxx> +#include <osl/diagnose.h> + +#include <limits.h> +#include <float.h> +#include <memory> + +AstExpression::AstExpression(ExprComb c, AstExpression *pExpr1, AstExpression *pExpr2) + : m_combOperator(c) + , m_subExpr1(pExpr1) + , m_subExpr2(pExpr2) +{ +} + +AstExpression::AstExpression(sal_Int32 l) + : m_combOperator(ExprComb::NONE) +{ + m_exprValue.reset( new AstExprValue ); + m_exprValue->et = ET_long; + m_exprValue->u.lval = l; +} + +AstExpression::AstExpression(sal_Int32 l, ExprType et) + : m_combOperator(ExprComb::NONE) +{ + m_exprValue.reset( new AstExprValue ); + m_exprValue->et = et; + m_exprValue->u.lval = l; +} + +AstExpression::AstExpression(sal_Int64 h) + : m_combOperator(ExprComb::NONE) +{ + m_exprValue.reset( new AstExprValue ); + m_exprValue->et = ET_hyper; + m_exprValue->u.hval = h; +} + +AstExpression::AstExpression(sal_uInt64 uh) + : m_combOperator(ExprComb::NONE) +{ + m_exprValue.reset( new AstExprValue ); + m_exprValue->et = ET_uhyper; + m_exprValue->u.uhval = uh; +} + +AstExpression::AstExpression(double d) + : m_combOperator(ExprComb::NONE) +{ + m_exprValue.reset( new AstExprValue ); + m_exprValue->et = ET_double; + m_exprValue->u.dval = d; +} + +AstExpression::AstExpression(OString* scopedName) + : m_combOperator(ExprComb::Symbol) +{ + if (scopedName) + m_xSymbolicName = *scopedName; +} + +AstExpression::~AstExpression() +{ +} + +/* + * Perform the coercion from the given AstExprValue to the requested + * ExprType. Return an AstExprValue if successful, NULL if failed. + * must be done for hyper, uhyper + */ +static bool +coerce_value(AstExprValue *ev, ExprType t) +{ + if (ev == nullptr) + return false; + + switch (t) + { + case ET_short: + switch (ev->et) + { + case ET_short: + return true; + case ET_ushort: + { + if (ev->u.usval > SAL_MAX_INT16) + return false; + auto tmp = static_cast<sal_Int16>(ev->u.usval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_long: + { + if (ev->u.lval < SAL_MIN_INT16 || ev->u.lval > SAL_MAX_INT16) + return false; + auto tmp = static_cast<sal_Int16>(ev->u.lval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_ulong: + { + if (ev->u.ulval > SAL_MAX_INT16) + return false; + auto tmp = static_cast<sal_Int16>(ev->u.ulval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_hyper: + { + if (ev->u.hval < SAL_MIN_INT16 || ev->u.hval > SAL_MAX_INT16) + return false; + auto tmp = static_cast<sal_Int16>(ev->u.hval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_INT16) + return false; + auto tmp = static_cast<sal_Int16>(ev->u.uhval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_boolean: + { + auto tmp = static_cast<sal_Int16>(ev->u.bval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_float: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.fval), SAL_MIN_INT16) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_INT16))) + { + return false; + } + auto tmp = static_cast<sal_Int16>(ev->u.fval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_double: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.dval), SAL_MIN_INT16) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_INT16))) + { + return false; + } + auto tmp = static_cast<sal_Int16>(ev->u.dval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_Int16>(ev->u.byval); + ev->u.sval = tmp; + ev->et = ET_short; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_ushort: + switch (ev->et) + { + case ET_short: + { + if (ev->u.sval < 0) + return false; + auto tmp = static_cast<sal_uInt16>(ev->u.sval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + case ET_ushort: + return true; + case ET_long: + { + if (ev->u.lval < 0 || ev->u.lval > SAL_MAX_UINT16) + return false; + auto tmp = static_cast<sal_uInt16>(ev->u.lval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + case ET_ulong: + { + if (ev->u.ulval > SAL_MAX_UINT16) + return false; + auto tmp = static_cast<sal_uInt16>(ev->u.ulval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + case ET_hyper: + { + if (ev->u.hval < 0 || ev->u.hval > SAL_MAX_UINT16) + return false; + auto tmp = static_cast<sal_uInt16>(ev->u.hval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_UINT16) + return false; + auto tmp = static_cast<sal_uInt16>(ev->u.uhval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + case ET_boolean: + { + auto tmp = static_cast<sal_uInt16>(ev->u.bval); + ev->u.usval = tmp; + ev->et = ET_short; + return true; + } + case ET_float: + { + if (ev->u.fval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_UINT16)) + { + return false; + } + auto tmp = static_cast<sal_uInt16>(ev->u.fval); + ev->u.usval = tmp; + ev->et = ET_short; + return true; + } + case ET_double: + { + if (ev->u.dval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_UINT16)) + { + return false; + } + auto tmp = static_cast<sal_uInt16>(ev->u.dval); + ev->u.usval = tmp; + ev->et = ET_short; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_uInt16>(ev->u.byval); + ev->u.usval = tmp; + ev->et = ET_ushort; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_long: + switch (ev->et) + { + case ET_short: + { + auto tmp = static_cast<sal_Int32>(ev->u.sval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<sal_Int32>(ev->u.usval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_long: + return true; + case ET_ulong: + { + if (ev->u.ulval > SAL_MAX_INT32) + return false; + auto tmp = static_cast<sal_Int32>(ev->u.ulval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_hyper: + { + if (ev->u.hval < SAL_MIN_INT32 || ev->u.hval > SAL_MAX_INT32) + return false; + auto tmp = static_cast<sal_Int32>(ev->u.hval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_INT32) + return false; + auto tmp = static_cast<sal_Int32>(ev->u.uhval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_boolean: + { + auto tmp = static_cast<sal_Int32>(ev->u.bval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_float: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.fval), SAL_MIN_INT32) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_INT32))) + { + return false; + } + auto tmp = static_cast<sal_Int32>(ev->u.fval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_double: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.dval), SAL_MIN_INT32) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_INT32))) + { + return false; + } + auto tmp = static_cast<sal_Int32>(ev->u.dval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_Int32>(ev->u.byval); + ev->u.lval = tmp; + ev->et = ET_long; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_ulong: + switch (ev->et) + { + case ET_short: + { + if (ev->u.sval < 0) + return false; + auto tmp = static_cast<sal_uInt32>(ev->u.sval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<sal_uInt32>(ev->u.usval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_long: + { + if (ev->u.lval < 0) + return false; + auto tmp = static_cast<sal_uInt32>(ev->u.lval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_ulong: + return true; + case ET_hyper: + { + if (ev->u.hval < 0 || ev->u.hval > SAL_MAX_UINT32) + return false; + auto tmp = static_cast<sal_uInt32>(ev->u.hval); + ev->u.lval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_UINT32) + return false; + auto tmp = static_cast<sal_uInt32>(ev->u.uhval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_boolean: + { + auto tmp = static_cast<sal_uInt32>(ev->u.bval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_float: + { + if (ev->u.fval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_UINT32)) + { + return false; + } + auto tmp = static_cast<sal_uInt32>(ev->u.fval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_double: + { + if (ev->u.dval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_UINT32)) + { + return false; + } + auto tmp = static_cast<sal_uInt32>(ev->u.dval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_uInt32>(ev->u.byval); + ev->u.ulval = tmp; + ev->et = ET_ulong; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_hyper: + switch (ev->et) + { + case ET_short: + { + auto tmp = static_cast<sal_Int64>(ev->u.sval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<sal_Int64>(ev->u.usval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_long: + { + auto tmp = static_cast<sal_Int64>(ev->u.lval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_ulong: + { + auto tmp = static_cast<sal_Int64>(ev->u.ulval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_hyper: + return true; + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_INT64) + return false; + auto tmp = static_cast<sal_Int64>(ev->u.uhval); + ev->u.hval = tmp; + ev->et = ET_long; + return true; + } + case ET_boolean: + { + auto tmp = static_cast<sal_Int64>(ev->u.bval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_float: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.fval), SAL_MIN_INT64) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_INT64))) + { + return false; + } + auto tmp = static_cast<sal_Int64>(ev->u.fval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_double: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.dval), SAL_MIN_INT64) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_INT64))) + { + return false; + } + auto tmp = static_cast<sal_Int64>(ev->u.dval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_Int64>(ev->u.byval); + ev->u.hval = tmp; + ev->et = ET_hyper; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_uhyper: + switch (ev->et) + { + case ET_short: + { + if (ev->u.sval < 0) + return false; + auto tmp = static_cast<sal_uInt64>(ev->u.sval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<sal_uInt64>(ev->u.usval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_long: + { + if (ev->u.lval < 0) + return false; + auto tmp = static_cast<sal_uInt64>(ev->u.lval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_ulong: + { + auto tmp = static_cast<sal_uInt64>(ev->u.ulval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_hyper: + { + if (ev->u.hval < 0) + return false; + auto tmp = static_cast<sal_uInt64>(ev->u.hval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_uhyper: + return true; + case ET_boolean: + { + auto tmp = static_cast<sal_uInt64>(ev->u.bval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_float: + { + if (ev->u.fval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_UINT64)) + { + return false; + } + auto tmp = static_cast<sal_uInt64>(ev->u.fval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_double: + { + if (ev->u.dval < 0.0 + || !o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_UINT64)) + { + return false; + } + auto tmp = static_cast<sal_uInt64>(ev->u.dval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + case ET_byte: + { + auto tmp = static_cast<sal_uInt64>(ev->u.byval); + ev->u.uhval = tmp; + ev->et = ET_uhyper; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_boolean: + switch (ev->et) + { + case ET_short: + ev->u.bval = ev->u.sval != 0; + ev->et = ET_boolean; + return true; + case ET_ushort: + ev->u.bval = ev->u.usval != 0; + ev->et = ET_boolean; + return true; + case ET_long: + ev->u.bval = ev->u.lval != 0; + ev->et = ET_boolean; + return true; + case ET_ulong: + ev->u.bval = ev->u.ulval != 0; + ev->et = ET_boolean; + return true; + case ET_hyper: + ev->u.bval = ev->u.hval != 0; + ev->et = ET_boolean; + return true; + case ET_uhyper: + ev->u.bval = ev->u.uhval != 0; + ev->et = ET_boolean; + return true; + case ET_boolean: + return true; + case ET_float: + ev->u.bval = ev->u.fval != 0.0; + ev->et = ET_boolean; + return true; + case ET_double: + ev->u.bval = ev->u.dval != 0.0; + ev->et = ET_boolean; + return true; + case ET_byte: + ev->u.bval = ev->u.byval != 0; + ev->et = ET_boolean; + return true; + default: + OSL_ASSERT(false); + return false; + } + case ET_float: + switch (ev->et) + { + case ET_short: + { + auto tmp = static_cast<float>(ev->u.sval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<float>(ev->u.usval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_long: + { + auto tmp = static_cast<float>(ev->u.lval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_ulong: + { + auto tmp = static_cast<float>(ev->u.ulval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_hyper: + { + auto tmp = static_cast<float>(ev->u.hval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_uhyper: + { + if (static_cast<float>(ev->u.ulval) > FLT_MAX) + return false; + auto tmp = static_cast<float>(ev->u.ulval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_boolean: + ev->u.fval = ev->u.bval ? 1.0f : 0.0f; + ev->et = ET_float; + return true; + case ET_float: + return true; + case ET_double: + { + if (static_cast<float>(ev->u.dval) > FLT_MAX || static_cast<float>(ev->u.dval) < -FLT_MAX) + return false; + auto tmp = static_cast<float>(ev->u.dval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + case ET_byte: + { + auto tmp = static_cast<float>(ev->u.byval); + ev->u.fval = tmp; + ev->et = ET_float; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_double: + switch (ev->et) + { + case ET_short: + { + auto tmp = static_cast<double>(ev->u.sval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_ushort: + { + auto tmp = static_cast<double>(ev->u.usval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_long: + { + auto tmp = static_cast<double>(ev->u.lval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_ulong: + { + auto tmp = static_cast<double>(ev->u.ulval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_hyper: + { + auto tmp = static_cast<double>(ev->u.hval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_uhyper: + { + if (ev->u.dval > FLT_MAX || ev->u.dval < -FLT_MAX) + return false; + auto tmp = static_cast<double>(ev->u.ulval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_boolean: + ev->u.dval = ev->u.bval ? 1.0 : 0.0; + ev->et = ET_double; + return true; + case ET_float: + { + auto tmp = static_cast<double>(ev->u.fval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + case ET_double: + return true; + case ET_byte: + { + auto tmp = static_cast<double>(ev->u.byval); + ev->u.dval = tmp; + ev->et = ET_double; + return true; + } + default: + OSL_ASSERT(false); + return false; + } + case ET_byte: + switch (ev->et) + { + case ET_short: + { + if (ev->u.sval < SAL_MIN_INT8 || ev->u.sval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.sval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_ushort: + { + if (ev->u.usval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.usval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_long: + { + if (ev->u.lval < SAL_MIN_INT8 || ev->u.lval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.lval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_ulong: + { + if (ev->u.ulval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.ulval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_hyper: + { + if (ev->u.hval < SAL_MIN_INT8 || ev->u.hval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.hval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_uhyper: + { + if (ev->u.uhval > SAL_MAX_UINT8) + return false; + auto tmp = static_cast<unsigned char>(ev->u.uhval); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_boolean: + ev->u.byval = ev->u.bval ? 1 : 0; + ev->et = ET_byte; + return true; + case ET_float: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.fval), SAL_MIN_INT8) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.fval), SAL_MAX_UINT8))) + { + return false; + } + auto tmp = static_cast<unsigned char>(static_cast<sal_Int32>(ev->u.fval)); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_double: + { + if (!(o3tl::convertsToAtLeast(o3tl::roundAway(ev->u.dval), SAL_MIN_INT8) + && o3tl::convertsToAtMost(o3tl::roundAway(ev->u.dval), SAL_MAX_UINT8))) + { + return false; + } + auto tmp = static_cast<unsigned char>(static_cast<sal_Int32>(ev->u.dval)); + ev->u.byval = tmp; + ev->et = ET_byte; + return true; + } + case ET_byte: + return true; + default: + OSL_ASSERT(false); + return false; + } + default: + OSL_ASSERT(false); + return false; + } +} + +bool AstExpression::coerce(ExprType t) +{ + /* + * Is it already of the right type? + */ + if (m_exprValue != nullptr && m_exprValue->et == t) + return true; + /* + * OK, must coerce + * + * First, evaluate it, then try to coerce result type + * If already evaluated, return the result + */ + evaluate(); + if (m_exprValue == nullptr) + return false; + + if (!coerce_value(m_exprValue.get(), t)) + m_exprValue.reset(); + + return m_exprValue != nullptr; +} + +bool AstExpression::compareLong(AstExpression *pExpr) +{ + bool bRet = false; + if (m_combOperator != pExpr->m_combOperator) + return bRet; + evaluate(); + pExpr->evaluate(); + if (m_exprValue == nullptr || pExpr->getExprValue() == nullptr) + return bRet; + if (m_exprValue->et != pExpr->getExprValue()->et) + return bRet; + switch (m_exprValue->et) + { + case ET_long: + bRet = m_exprValue->u.lval == pExpr->getExprValue()->u.lval; + break; + default: + OSL_ASSERT(false); + bRet = false; + break; + } + return bRet; +} + +void AstExpression::evaluate() +{ + /* + * Already evaluated? + */ + if ( m_exprValue != nullptr ) + return; + /* + * OK, must evaluate operator + */ + switch (m_combOperator) + { + case ExprComb::Add: + case ExprComb::Minus: + case ExprComb::Mul: + case ExprComb::Div: + case ExprComb::Mod: + m_exprValue = eval_bin_op(); + break; + case ExprComb::Or: + case ExprComb::Xor: + case ExprComb::And: + case ExprComb::Left: + case ExprComb::Right: + m_exprValue = eval_bit_op(); + break; + case ExprComb::UPlus: + case ExprComb::UMinus: + m_exprValue = eval_un_op(); + break; + case ExprComb::Symbol: + m_exprValue = eval_symbol(); + break; + case ExprComb::NONE: + break; + } +} + +std::unique_ptr<AstExprValue> AstExpression::eval_bin_op() +{ + ExprType eType = ET_double; + + if ( m_combOperator == ExprComb::Mod ) + eType = ET_hyper; + + if (m_subExpr1 == nullptr || m_subExpr2 == nullptr) + return nullptr; + m_subExpr1->evaluate(); + if (m_subExpr1->getExprValue() == nullptr) + return nullptr; + if (!m_subExpr1->coerce(eType)) + return nullptr; + m_subExpr2->evaluate(); + if (m_subExpr2->getExprValue() == nullptr) + return nullptr; + if (!m_subExpr2->coerce(eType)) + return nullptr; + + std::unique_ptr< AstExprValue > retval(new AstExprValue); + retval->et = eType; + + switch (m_combOperator) + { + case ExprComb::Mod: + if (m_subExpr2->getExprValue()->u.hval == 0) + return nullptr; + retval->u.hval = m_subExpr1->getExprValue()->u.hval % m_subExpr2->getExprValue()->u.hval; + break; + case ExprComb::Add: + retval->u.dval = m_subExpr1->getExprValue()->u.dval + m_subExpr2->getExprValue()->u.dval; + break; + case ExprComb::Minus: + retval->u.dval = m_subExpr1->getExprValue()->u.dval - m_subExpr2->getExprValue()->u.dval; + break; + case ExprComb::Mul: + retval->u.dval = m_subExpr1->getExprValue()->u.dval * m_subExpr2->getExprValue()->u.dval; + break; + case ExprComb::Div: + if (m_subExpr2->getExprValue()->u.dval == 0.0) + return nullptr; + retval->u.dval = m_subExpr1->getExprValue()->u.dval / m_subExpr2->getExprValue()->u.dval; + break; + default: + return nullptr; + } + + return retval; +} + +std::unique_ptr<AstExprValue> AstExpression::eval_bit_op() +{ + if (m_subExpr1 == nullptr || m_subExpr2 == nullptr) + return nullptr; + m_subExpr1->evaluate(); + if (m_subExpr1->getExprValue() == nullptr) + return nullptr; + if (!m_subExpr1->coerce(ET_long)) + return nullptr; + m_subExpr2->evaluate(); + if (m_subExpr2->getExprValue() == nullptr) + return nullptr; + if (!m_subExpr2->coerce(ET_long)) + return nullptr; + + std::unique_ptr< AstExprValue > retval(new AstExprValue); + retval->et = ET_long; + + switch (m_combOperator) + { + case ExprComb::Or: + retval->u.lval = m_subExpr1->getExprValue()->u.lval | m_subExpr2->getExprValue()->u.lval; + break; + case ExprComb::Xor: + retval->u.lval = m_subExpr1->getExprValue()->u.lval ^ m_subExpr2->getExprValue()->u.lval; + break; + case ExprComb::And: + retval->u.lval = m_subExpr1->getExprValue()->u.lval & m_subExpr2->getExprValue()->u.lval; + break; + case ExprComb::Left: + retval->u.lval = m_subExpr1->getExprValue()->u.lval << m_subExpr2->getExprValue()->u.lval; + break; + case ExprComb::Right: + retval->u.lval = m_subExpr1->getExprValue()->u.lval >> m_subExpr2->getExprValue()->u.lval; + break; + default: + return nullptr; + } + + return retval; +} + +std::unique_ptr<AstExprValue> AstExpression::eval_un_op() +{ + if (m_subExpr1 == nullptr) + return nullptr; + m_subExpr1->evaluate(); + if (m_subExpr1->getExprValue() == nullptr) + return nullptr; + if (!m_subExpr1->coerce(ET_double)) + return nullptr; + + std::unique_ptr< AstExprValue > retval(new AstExprValue); + retval->et = ET_double; + + switch (m_combOperator) + { + case ExprComb::UPlus: + retval->u.lval = m_subExpr1->getExprValue()->u.lval; + break; + case ExprComb::UMinus: + retval->u.lval = -(m_subExpr1->getExprValue()->u.lval); + break; + default: + return nullptr; + } + + return retval; +} + +std::unique_ptr<AstExprValue> AstExpression::eval_symbol() +{ + AstScope *pScope = nullptr; + AstDeclaration *pDecl; + AstConstant *pConst; + + /* + * Is there a symbol stored? + */ + if (!m_xSymbolicName) + { + ErrorHandler::evalError(this); + return nullptr; + } + /* + * Get current scope for lookup + */ + if (idlc()->scopes()->depth() > 0) + pScope = idlc()->scopes()->topNonNull(); + if ( !pScope ) + { + ErrorHandler::lookupError(*m_xSymbolicName); + return nullptr; + } + /* + * Do lookup + */ + pDecl = pScope->lookupByName(*m_xSymbolicName); + if (pDecl == nullptr) + { + ErrorHandler::lookupError(*m_xSymbolicName); + return nullptr; + } + /* + * Is it a constant? + */ + if (pDecl->getNodeType() != NT_const && + pDecl->getNodeType() != NT_enum_val) + { + ErrorHandler::constantExpected(pDecl, *m_xSymbolicName); + return nullptr; + } + if (!ErrorHandler::checkPublished(pDecl)) + { + return nullptr; + } + /* + * OK, now evaluate the constant we just got, to produce its value + */ + pConst = static_cast< AstConstant* >(pDecl); + pConst->getConstValue()->evaluate(); + auto const val = pConst->getConstValue()->getExprValue(); + return val == nullptr ? nullptr : std::make_unique<AstExprValue>(*val); +} + +OString AstExpression::toString() +{ + OString exprStr; + if ( m_combOperator == ExprComb::Symbol ) + return m_xSymbolicName ? *m_xSymbolicName : OString("<Undefined Name>"); + + if ( m_exprValue ) + { + switch (m_exprValue->et) + { + case ET_short: + return OString::number(m_exprValue->u.sval); + case ET_ushort: + return OString::number(m_exprValue->u.usval); + case ET_long: + return OString::number(m_exprValue->u.lval); + case ET_ulong: + return OString::number(m_exprValue->u.ulval); + case ET_hyper: + return OString::number(m_exprValue->u.hval); + case ET_uhyper: + return OString::number(m_exprValue->u.uhval); + case ET_float: + return OString::number(m_exprValue->u.fval); + case ET_double: + return OString::number(m_exprValue->u.dval); + case ET_byte: + return OString::number(m_exprValue->u.byval); + case ET_boolean: + if ( m_exprValue->u.lval == 0) + return "FALSE"; + else + return "TRUE"; + default: + OSL_ASSERT(false); + return OString(); + } + } + + switch (m_combOperator) + { + case ExprComb::UPlus: + exprStr += "+"; + break; + case ExprComb::UMinus: + exprStr += "-"; + break; + default: + break; + } + if ( m_subExpr1 ) + exprStr += m_subExpr1->toString(); + switch (m_combOperator) + { + case ExprComb::Add: + exprStr += " + "; + break; + case ExprComb::Minus: + exprStr += " - "; + break; + case ExprComb::Mul: + exprStr += " * "; + break; + case ExprComb::Div: + exprStr += " / "; + break; + case ExprComb::Mod: + exprStr += " % "; + break; + case ExprComb::Or: + exprStr += " | "; + break; + case ExprComb::Xor: + exprStr += " ^ "; + break; + case ExprComb::And: + exprStr += " & "; + break; + case ExprComb::Left: + exprStr += " << "; + break; + case ExprComb::Right: + exprStr += " >> "; + break; + default: + break; + } + + if ( m_subExpr2 ) + exprStr += m_subExpr2->toString(); + + return exprStr; +} + +// Convert the type of an AST_Expression to a char * +const char* exprTypeToString(ExprType t) +{ + switch (t) + { + case ET_short: + return "short"; + case ET_ushort: + return "unsigned short"; + case ET_long: + return "long"; + case ET_ulong: + return "unsigned long"; + case ET_hyper: + return "hyper"; + case ET_uhyper: + return "unsigned hyper"; + case ET_float: + return "float"; + case ET_double: + return "double"; + case ET_char: + return "char"; + case ET_byte: + return "byte"; + case ET_boolean: + return "boolean"; + case ET_string: + return "string"; + case ET_any: + return "any"; + case ET_type: + return "type"; + case ET_void: + return "void"; + case ET_none: + return "none"; + } + + return "unknown"; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |